Aircraft Registration, Airworthiness, Documents and Nationality Marks
Registration and marks
Every aircraft flown in UAE airspace must normally be on the UAE register held by the GCAA. The certificate of registration names the owner, operator, manufacturer, type, serial number and marks. The UAE nationality mark is A6, followed by a hyphen and the registration letters - for example A6-ABC. Marks must be painted in the positions and sizes the regulation requires, fireproof where specified, and no other mark may be confusable with them. Changes of ownership or marks must be notified; export certificates and temporary permits cover aircraft leaving or joining the register.
Airworthiness
The certificate of airworthiness (C of A) is issued when the type design and the individual aircraft meet the airworthiness requirements. It is kept valid by the approved maintenance programme, the technical log and an airworthiness review certificate (ARC) renewed on the cycle set by the current airworthiness regulation. No flight with a known defect affecting safety; use the MEL where approved, or the minimum equipment list applicable to non-commercial operations.
Documents on board
- Certificate of registration and certificate of airworthiness, with the ARC
- Radio station licence and insurance certificate (third-party insurance is required)
- Pilot licence and current medical
- Aircraft flight manual, weight and balance, technical log and journey log
- Noise certificate where applicable, and the MEL
Worked example
Your C of A expires at the end of the month but the ARC is current, and the maintenance organisation says "the ARC is what matters, you can fly". Wrong: the C of A itself must be valid. If it has expired and the aircraft must reach a maintenance base, the operator needs a special flight permit from the GCAA, with conditions attached - you cannot simply "fly it to base for the check".
Traps that cost marks
- Confusing the ARC with the C of A, or the radio licence with the C of R.
- Assuming insurance and radio licensing are part of airworthiness; they are separate documents.
- Believing a defect becomes legal because it is in the MEL, when the MEL does not cover it or imposes an operational condition.
- Mixing the registration mark (A6-...) with the R/T callsign, which may be a company callsign.
Aircraft Operations
Before start
The pre-flight action is an exam favourite: weather (METAR, TAF, SIGMET), NOTAMs, technical status, mass and balance, performance (take-off and landing distance, climb gradient, density altitude), fuel, route and airspace, alternates, and passenger/document checks. In the UAE, summer density altitude is the classic performance trap.
Fuel
Plan trip fuel, taxi fuel, contingency and final reserve. For VFR the final reserve is normally 30 minutes at holding speed by day and 45 minutes at night (check the current operating regulation). Fuel must be enough to land with at least the reserve; a "we'll see" fuel figure is a violation waiting to happen.
Loading and equipment
Stay within maximum take-off, maximum landing and maximum zero-fuel masses and inside the CG envelope. Minimum VFR-day equipment includes airspeed indicator, altimeter, magnetic direction indicator, fuel quantity, oil pressure and temperature, tachometer and the required lights, plus the documents from the registration and airworthiness domain.
Passengers and cargo
The private pilot may not carry dangerous goods without approval. Passengers must be briefed on belts, doors, exits, smoking and oxygen. No dropping of objects except with permission; no aerial work, parachuting or towing without approval.
Alcohol, drugs and fatigue
The regulation prohibits acting as crew while under the influence of alcohol or drugs, or unfit through fatigue or illness. Do not rely on a numeric threshold; being under the limit is no defence if you are impaired.
Worked example
Trip fuel for 1 h 45 min at 40 L/h = 70 L. Taxi 10 min ≈ 7 L. Contingency 10% of trip = 7 L. Final reserve 30 min = 20 L. Total required ≈ 104 L. With 110 L usable you can go, but landing fuel must not fall below 20 L - if a wind shift adds 20 minutes (about 13 L), you are already inside reserve, so divert earlier.
Traps that cost marks
- Using the 45-minute reserve by day, or forgetting taxi fuel.
- Checking take-off mass but not landing mass after a short sector with full tanks.
- Letting a verbal "it's fine" from the owner override the performance chart.
- Treating cost-sharing as commercial operation, or charging passengers "for fuel" as a PPL.
Communications
Phraseology is a standard, not a style
R/T in the UAE follows ICAO standard phraseology. Learn the standard words: ROGER (received), WILCO (will comply), AFFIRM, STANDBY, SAY AGAIN, DISREGARD, CLEARED, HOLD SHORT, LINE UP AND WAIT, CONFIRM, CORRECTION. Readback is required for clearances, levels, headings, speeds, runway, SSR code and frequency changes; if you cannot read back, say so.
Frequencies and equipment
VHF aeronautical band 118.000–136.975 MHz; emergency 121.5 MHz. The UAE uses 8.33 kHz channel spacing - check the AIP for where it applies. The transponder displays Mode A (squawk) and Mode C (altitude). Codes: 7700 distress, 7600 radio failure, 7500 unlawful interference. An ELT transmits on 406 MHz to the satellite system, with 121.5 for local homing.
Distress, urgency and failure
MAYDAY is distress (grave and imminent danger, immediate assistance); PAN-PAN is urgency (no immediate danger). Pass nature of the problem, intention, position, level, heading and persons on board. Radio failure: in VMC, continue VFR, land at the nearest suitable aerodrome and report arrival; in IMC, maintain the last clearance for the stated period, squawk 7600, then follow the published lost-communication procedure and the flight plan.
Light signals
A radio failure in the circuit is a favourite. In the air: steady red - give way and continue circling; flashing red - aerodrome unsafe, do not land; steady green - cleared to land; flashing green - return for landing; alternating red and green - exercise extreme caution. On the ground: steady green - cleared for take-off; flashing green - cleared to taxi; steady red - stop; flashing red - taxi clear of the runway in use; flashing white - return to starting point.
Worked example
Your radio fails on final and you see a steady green from the tower: you are cleared to land. After landing you see flashing red and taxi clear of the runway. You stop, try the published ground frequency, then use a phone. Never assume the tower knows your intentions.
Traps that cost marks
- Reading back a level different from the one issued - the most common simulated error.
- Saying MAYDAY for a non-urgent problem, or PAN-PAN for a life-threatening one.
- Treating 121.5 MHz as a working frequency for general chatter.
- Forgetting that "line up and wait" and frequency changes also require correct readback.
Incident Reporting and Security
Definitions decide the report
An accident under ICAO Annex 13 involves a person fatally or seriously injured, the aircraft sustaining substantial damage or structural failure, or the aircraft missing or inaccessible. A serious incident is one in which an accident nearly occurred. Everything else affecting safety is an incident or occurrence. The exam often tests whether something is an accident: a clipped wingtip or a prop striking a light is usually an incident, not a reportable accident; a runway incursion with a go-around is an incident.
Who to tell, and when
Notify ATC immediately by radio, then submit a written occurrence report to the GCAA within the period set by the mandatory occurrence reporting scheme. Report even without damage: airprox, runway incursion, birdstrike, laser strike, TCAS RA, level bust, near-miss. The scheme follows just culture - the aim is safety, not blame - but wilful misconduct or gross negligence is not shielded.
Accidents: preserve, don't move
After an accident, protect the scene, avoid moving the aircraft unless needed to rescue people or prevent fire, preserve the CVR and FDR, and prevent unauthorised access. The GCAA's accident investigation function conducts the investigation under Annex 13, separate from enforcement action.
Security
Security follows the GCAA aviation security regulation, implementing Annex 17. Practical points: enter the security restricted area only with a valid permit; submit to screening; carry nothing prohibited; never leave an aircraft unlocked or unattended with keys accessible; carry out a security search of the aircraft where required; report unattended baggage, signs of tampering (doors, fuel caps, control locks), suspicious behaviour and any threat. Unlawful interference means hijack, sabotage or attack - squawk 7500 and follow operator and ATC procedures.
Worked example
During taxi a wingtip clips a stand marker and cracks the nav light lens. Nobody is hurt and a mechanic says the aircraft is fine. Two problems: it is a ground occurrence that must be reported to ATC and entered in the technical log, and you may not fly until the defect is assessed against the MEL or by a qualified person. "No injury" does not mean "no report".
Traps that cost marks
- Confusing accident with incident because nobody was hurt.
- Deciding an event is below the reporting threshold without checking the reporting list.
- Moving wreckage straight after an accident.
- Treating a ground security issue as none of the pilot's business.